AWS Certified SysOps Administrator SOA-C01 – Question457

A placement group in Amazon EC2 can

A.
place high memory instances in one logical group.
B. logically name and tag different tiers of the system (DB, application, business logic etc).
C. isolate any instance-type physically so that groups access local resources.
D. reduce network latency and increase network throughput

Correct Answer: D

Explanation:

Explanation: A placement group is a logical grouping of instances within a single Availability Zone. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both. To provide the lowest latency, and the highest packet-per-second network per-formance for your placement group, choose an instance type that supports enhanced networking.
Reference: https://aws.amazon.com/ec2/faqs/